Figure 1

Initial vancomycin serum trough concentration vs postmenstrual age. Initial vancomycin serum trough concentration versus postmenstrual age for 112 neonates. The dashed lines indicate the therapeutic range of vancomycin trough concentration (10 – 15 mg/L). The solid line was obtained by linear regression analysis (Spearman’s rho): r = -0.248, p = 0.009.